# Free Barcode Generator Create UPC & EAN Codes Online

## Visual Data Encoding

Generate industry-standard linear barcodes for logistics, inventory, and retail. Customize every aspect from line thickness to font sizing and export high-resolution assets instantly.

### Symbology

- **CODE128**  
- **Data Length:** 12 chars  
- **Scale Factor:** 2x  
- **Engine State:** Live

### Configuration

- **Data Payload**
- **Symbology (Type)**: CODE128 (Auto), EAN-13, EAN-8, UPC-A, CODE 39, ITF-14, MSI, Pharmacode
- **Line Width**  
- **Line Color**  
- **HEX**  
- **Background**  
- **HEX**  
- **Display Human Readable Text**  
- **Bar Height**  
- **Font Size**  
- **Visual Preview**

**Invalid data for selected type.**

**Download PNG**  
**Save SVG**

## Professional Features

- **Universal Symbologies**  
Supports all major linear formats including CODE128 for general logistics and EAN/UPC for global retail standards.

- **Real-time Rendering**  
Watch your barcode update instantly as you type data or modify styling parameters like height and width.

- **Aesthetic Control**  
Full control over foreground and background colors to match your packaging design or brand guidelines perfectly.

- **Vector SVG Export**  
Export in SVG format for infinite scalability, ensuring perfect sharpness in professional printing and large-scale manufacturing.

- **Syntax Validation**  
Built-in validation engine alerts you if the data payload doesn't match the specific requirements of the selected barcode type.

- **100% Client-Side**  
Your inventory data never leaves your browser. All barcode generation logic is performed locally for maximum data privacy.

## Usage Workflow

1. **Enter Data & Type**  
   Enter your numeric or alphanumeric value and select the appropriate symbology for your specific industry use-case.

2. **Refine Visual Specs**  
   Adjust the bar width and height. Toggle the human-readable text and customize colors to fit your design requirements.

3. **Export and Print**  
   Select PNG for web use or SVG for professional printing. Your barcode is immediately ready for production use.

## Why use generator pro

- **Industrial-Grade Precision**  
Unlike basic tools, our engine follows strict ISO/IEC standards for barcode generation, ensuring that every asset produced is 100% scannable by physical hardware.

- **Zero-Latency Engine**  
Powered by optimized Vanilla JS, the rendering happens in microseconds. No waiting for server responses or page reloads while testing different values.

- **High Fidelity Assets**  
We provide ultra-crisp exports. Our PNGs are generated at high DPI and our SVGs are clean, lightweight, and perfect for high-speed industrial printers.